Seagate SCSI Interface Product Manual page 96

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Table 39: Format Unit parameter definition (format variations)
CDB-Byte (see Table 38)
FMT CMP
DATA LIST Defect List Format
Bit 4 Bit 3 Bit 2 Bit 1
0 X X X
Block format [2]
1 0 0 X
1 1 0 X
Bytes from Index format
1 1 1 0
1 0 1 0
Physical Sector format
1 1 1 0
1 0 1 0
Notes.
[1] Byte one of the Defect List Header determines whether the P and C defects are reallocated (see Table
41).
[2] See individual drive's Product Manual, Volume 1, for support/nonsupport.
Bit 0 Comments
X Default format: No Data Out phase occurs. Drive reallocates all sectors in
the P list plus any sector which fails the Format Verify phase (C type flaws).
Any previous G list is erased.
X Format with G and no D: A four byte Defect List Header must be sent by the
initiator. No Defect Descriptors (D list) are sent by the initiator. The drive
reallocates all sectors in the drive's current G list [1].
X Format without G or D: A four byte Defect List Header must be sent by the
initiator. No D list may be sent by the initiator. The drive erases any previous
G list [1].
0 Format with D and without G. The initiator must send a four byte Defect List
Header followed by a D list of the defects for the drive to reallocate. The D
list must be in the bytes from Index format (see Table 46). The drive erases
any previous G list [1].
0 Format with D and with G: The initiator must send a four byte Defect List
Header followed by a D list of the defects for the drive to reallocate. The D
list must be in the bytes from Index format (see Table 46). The drive also
reallocates all sectors in the drive's current G list [1].
1 Format with D and without G: The initiator must send a four byte Defect List
Header followed by a D List of defects for the drive to reallocate. The D list
must be in the Physical Sector format (see Table 47). The drive erases any
previous G list [1].
1 Format with D and with G: The initiator must send a four byte Defect List
Header followed by a D List of defects for drive to reallocate. The D list must
be in the Physical Sector format (see Table 47). The drive also reallocates all
sectors in the drive's current G list [1].
SCSI Interface Product Manual, Rev. J